CN203044813U - Reverse pressure plate sealing structure of vertical parting automatic molding machine of clay sand - Google Patents
Reverse pressure plate sealing structure of vertical parting automatic molding machine of clay sand Download PDFInfo
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- CN203044813U CN203044813U CN 201220649214 CN201220649214U CN203044813U CN 203044813 U CN203044813 U CN 203044813U CN 201220649214 CN201220649214 CN 201220649214 CN 201220649214 U CN201220649214 U CN 201220649214U CN 203044813 U CN203044813 U CN 203044813U
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- pressure plate
- sand
- reverse pressure
- sealing
- molding machine
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Abstract
The utility model provides a reverse pressure plate sealing structure of a vertical parting automatic molding machine of clay sand. The sealing structure comprises a machine base formed by a fuel tank and a base, wherein a reverse pressure plate swing linkage mechanism and a quick sand-shooting system are installed on the machine base; and the reverse pressure plate swing linkage mechanism is connected with a swingable reverse pressure plate. The sealing structure is characterized in that the sealing side of the swingable reverse pressure plate comprises an inside sealing cover plate and an outside sealing cover plate; the inside and outside sealing cover plates fix an O-shaped elastic sealing plunger and an omega-shaped sealing ring on a cover plate and a reverse pressure plate body; and a plurality of air passages are made on joint surfaces of the cover plate and reverse pressure plate body. The vertical parting flaskless shoot-squeeze automatic molding machine of clay sand adopts a novel air pressure expansion type sealing device on the cavity swingable reverse pressure plate. The plunger is pushed by injecting the air pressure to enable the sealing ring to expand, thus the sealing reliability can be improved and the service life can be prolonged. The molding machine is free from sand dust escape in the whole molding process, is high in molding speed, accurate in locating and high in mold assembly accuracy and has the characteristics of efficiency, energy conservation and environment friendliness. Meanwhile, the sand molds manufactured by the molding machine have high compactness and are uniform, and the castings poured with the sand molds have low defective indexes, beautiful appearances and high geometric dimension accuracy.
Description
Technical field
The utility model relates to a kind of Casting Equipment of Machine, is specially a kind of fully automatic high-speed mould on end machine that adopts the driven by servomotor hydraulic control technology.Be mainly used in the making of foundry clay sand sand mold.
Background technology
Clay-bonded sand metal casting moulding is one of main production method of machine components blank, is widely used in machine building industry, and occupies critical role.
Wherein the making of clay-bonded sand sand mold is one of key link in the castings production technical process, the making quality of sand mold is directly connected to quality and the yield rate of foundry goods, make the sand mold of high-quality to improving casting quality, reduce casting cost and play crucial effects, developed countries has been developed all kinds of high-end automatic molding machines at this formative technology, this class machinery has the advantage of production efficiency height, steady quality, energy-conserving and environment-protective, prices are rather stiff but because of it, maintenance difficulties is big, is difficult to promote the use of in common customer.Present domestic most foundry enterprises are still using technology jolt-squeeze machine simple, backward in technique or squeeze molding machine to carry out the sand mold making, sand-mould quality poor stability, the equipment running noises height made, labour intensity is big, production efficiency is low, environmental pollution is heavy, and domestic casting industry is badly in need of high-end automatic molding machine and is replaced the existing mo(u)lding equipment that falls behind.
Summary of the invention
The utility model designs a kind of vertical-parting clay-bonded sand automatic moulding machine back-pressure plate hermetically-sealed construction at the deficiency on the above-mentioned prior art.
A kind of vertical-parting clay-bonded sand automatic moulding machine back-pressure plate hermetically-sealed construction of the present utility model, comprise by fuel tank, the support that base is formed, at support back-pressure plate swing link mechanism and fast rapid fire sand system are housed, described back-pressure plate swing link mechanism with can swing the back-pressure plate and be connected, it is characterized in that described sealed sides of swinging the back-pressure plate comprises inner seal cover plate and outside seal cover board, described inner seal cover plate and outside seal cover board are with O shape elastic packing plunger, Ω shape sealing ring is fixed on cover plate and the back-pressure plate body, is manufactured with a plurality of ventilation air flues at the faying face of cover plate and back-pressure plate body.
A kind of vertical-parting box-less shoot squeeze clay-bonded sand automatic moulding machine of the present utility model can be swung the back-pressure plate at die cavity and adopt the swollen compact form sealing device of novel air pressure.Make sealed expansion by injecting air pressure promotion plunger, can improve sealing reliability.Increase the service life.The moulding overall process of this moulding machine does not have sand dust and leaks, and moulding speed is fast, accurate positioning, mould assembly precision height, has characteristics energy-efficient, environmental protection.The sand mold compactability of this moulding machine made is high and even simultaneously, and is low with its casting wasted product rate of casting out, good looking appearance, geometric accuracy height.
Description of drawings
Fig. 1 is moulding machine overall structure schematic diagram;
Fig. 2 can swing back-pressure plate detail drawing;
Fig. 3 is the A portion enlarged diagram of Fig. 2.
1-back-pressure plate motion arm-tie among the figure; 2-back-pressure plate motion pull bar; 3-bracing frame one; 4-back-pressure leaf fat cylinder; 5-back-pressure leaf fat cylinder displacement transducer; The quick prefill valve group of 6-; 7-pressure plate oil cylinder displacement transducer; The 8-supporting traverse; 9-gas storage bag; 10-bracing frame two; 11-pressure plate oil cylinder; 12-penetrates the sand Pneumatic valve; 13-hopper air bleeding valve; 14-knockout valve; 15-sand hopper; 16-penetrates abrasive cone shape and takes over body; 17-pushes away type pressure plate assembly; 18-moulding chamber assembly; 19-can swing the back-pressure plate; 20-back-pressure plate motion support frame; 21-back-pressure plate swing link mechanism; The 22-support; 29-O shape elastic packing plunger; 30-Ω shape sealing ring; 31-inner seal cover plate; 32-outside seal cover board; The 33-cover plate; 34-back-pressure plate body.
The specific embodiment
Followingly with reference to accompanying drawing 1-3 invention main points of the present utility model are elaborated.
Shown in Figure 1: support 22 carries out machine finishing after all using the welding of medium plate and template, has constituted the very high mechanism of high strength, flatness the basis is installed.At support moulding chamber assembly 18, bracing frame 1, bracing frame 2 10 are arranged fixedly, fixedly penetrate abrasive cone shape on the moulding chamber assembly 18 and take over body 16, back-pressure leaf fat cylinder 4 and pressure plate oil cylinder 11 are installed on bracing frame 1 and the moulding chamber assembly 18, pressure plate oil cylinder 11 bar heads fixedly push away type pressure plate assembly 17, be equipped with four back-pressure plate motion pull bars 2 on bracing frame 1, bracing frame 2 10, the moulding chamber assembly 18, back-pressure plate motion support frame 20 is contained on the back-pressure plate motion pull bar 2, be equipped with on the back-pressure plate motion support frame 20 and can swing back-pressure plate 19.By moulding chamber assembly 18, push away type pressure plate assembly 17, penetrate abrasive cone shape and take over body 16, can swing back-pressure plate 19 and form a sand mold moulding closed chamber.
At bracing frame 1, bracing frame 2 10, penetrate abrasive cone shape and take over body 16 two supporting traverses 8 are fixedly arranged.Prefill valve group 6 is loaded in the middle of back-pressure leaf fat cylinder 4 and the pressure plate oil cylinder 11 fast.By servomotor pump assembly 23(figure two), fast prefill valve group 6, back-pressure leaf fat cylinder 4, pressure plate oil cylinder 11 and hydraulic system form close chamber, compacting, push away type, mould assembly, the demoulding, the hydraulic control that resets and executive system.
At support back-pressure plate swing link mechanism 21 is housed, back-pressure plate swing link mechanism 21 with can swing back-pressure plate 19 and be connected, back-pressure leaf fat cylinder 4 drives back-pressure plate motion arm-tie 1, back-pressure plate motion arm-tie 1 pulling back-pressure plate motion pull bar 2, back-pressure plate motion support frame 20 move left and right, drive swing link mechanism 21 along certain orbiting motion, driving can be swung back-pressure plate 19 and be carried out 90 ° of upsets up and down, having reached moves to left closes die cavity, and the unlatching die cavity moves to right.
Take over body 16 sand hopper 15 is housed penetrating abrasive cone shape.Sand hopper 15 middle parts are equipped with and are penetrated sand Pneumatic valve 12, and knockout valve 14 is equipped with at the top.Knockout valve 14 is equipped with hopper air bleeding valve 13.By penetrate sand Pneumatic valve 12, hopper air bleeding valve 13, knockout valve 14, sand hopper 15, penetrate abrasive cone shape take over body 16 forms one controlled feed in raw material, the fast rapid fire sand of hyperbar system.
At supporting traverse 8 gas storage bag 9 is housed, is used for deposit enough air pressure and air demand.
At pressure plate oil cylinder 11 pressure plate oil cylinder displacement transducer 7 is housed, for electric-control system provides pressure plate oil cylinder position signal accurately.
At back-pressure leaf fat cylinder 4 back-pressure leaf fat cylinder displacement transducer 5 is housed, for electric-control system provides back-pressure leaf fat cylinder position signal accurately.
Shown in Fig. 2-3: back-pressure plate sealed sides is fixed on O shape elastic packing plunger 29, Ω shape sealing ring 30 on cover plate 33, the back-pressure plate body 34 by inner seal cover plate 31, outside seal cover board 32.The O shape elastic packing plunger 29 that is formed by the elastomeric material manufacturing of elasticity height, hardness height, good seal performance is bearing in the Ω shape sealing ring 30 that mechanical strength height, crust is smooth, flexibility is strong, wear-resisting polyurethane material manufacturing form.The faying face of cover plate 33, back-pressure plate body 34 is manufactured with a plurality of ventilation air flues, after injecting air pressure, air pressure promotes O shape elastic packing plunger 29 and outwards expands, and Ω shape sealing ring 30 and die cavity is adjacent to seals, and external leakage takes place when avoiding the molding sand high speed and high pressure to inject die cavity.Lay down air pressure when the back-pressure plate is opened the demoulding, sealing is shunk and has been reduced frictional force, prolongs to seal service life.
The course of work of automatic moulding machine is as follows: under the original state, back-pressure leaf fat cylinder 4, pressure plate oil cylinder 11 are in retracted state, push away type pressure plate assembly 17 and are withdrawn into desired location in the moulding chamber assembly 18, can swing back-pressure plate 19 and be opened into horizontal level.Knockout valve 14 is in closed condition.Penetrating sand Pneumatic valve 12 closes.Hopper air bleeding valve 13 is closed.After starting operation, 4 releases of back-pressure leaf fat cylinder drive can swing back-pressure plate 19 slow starts, fast rotational 90 is spent, moved ahead at a slow speed die cavity is sealed.In the time of can swinging back-pressure plate 19 fast rotational, 6 pairs of back-pressure leaf fats of prefill valve group cylinder 4 carries out quick topping up fast.Open knockout valve 14 by air cylinder driven and give sand hopper 15 reinforced, close knockout valve 14 after being dosed to desired location.Penetrate sand Pneumatic valve 12 and open input high speed and high pressure gases in the sand hopper 15, promote molding sand and carry out high speed and high pressure in the die cavity and penetrate sand, penetrate sand Pneumatic valve 12 and close.Hopper air bleeding valve 13 is opened residual gas in the sand hopper 15 is drained, and hopper air bleeding valve 13 is closed.Pressure plate oil cylinder 11 pushes away that type pressure plate assembly 17 opens slowly, quick compacting sand mold, and back-pressure leaf fat cylinder 4 was released pulling simultaneously and can be swung back-pressure plate 19 and exert pressure in the die cavity and carry out the sand mold compacting this moment.Back-pressure leaf fat cylinder 4 is regained, and driving can be swung the 19 slow start demouldings of back-pressure plate, and fast rotational 90 degree are opened die cavity, and the cleaning nozzles that gas circuit control simultaneously can be swung dress in the back-pressure plate 19 clean the floating sand of sand mold, platen.Pressure plate oil cylinder 11 pushes away type pressure plate assembly 17 and moves ahead fast and push sand mold to the mould assembly position, and mould assembly then pressurizes at a slow speed.Pressure plate oil cylinder 11 slow starts drag and push away type pressure plate assembly 17 and return the demoulding, return to the desired location of die cavity after the demoulding fast, the cleaning nozzles that gas circuit control simultaneously pushes away dress in the type pressure plate assembly 17 clean the floating sand of die cavity, platen, and the air cushion that gas circuit control pushes away type pressure plate assembly 11 bottoms reduces the frictional force of pressure plate and platen.Carry out moulding next time.Automatic moulding machine is finished continual moulding production according to this mode continuous work.
Claims (1)
1. vertical-parting clay-bonded sand automatic moulding machine back-pressure plate hermetically-sealed construction, comprise by fuel tank, the support that base is formed, at support back-pressure plate swing link mechanism (21) and fast rapid fire sand system are housed, described back-pressure plate swing link mechanism (21) with can swing back-pressure plate (19) and be connected, it is characterized in that described sealed sides of swinging back-pressure plate (19) comprises inner seal cover plate (31) and outside seal cover board (32), described inner seal cover plate (31) and outside seal cover board (32) are with O shape elastic packing plunger (29), Ω shape sealing ring (30) is fixed on cover plate (33) and the back-pressure plate body (34), is manufactured with a plurality of ventilation air flues at the faying face of cover plate (33) and back-pressure plate body (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220649214 CN203044813U (en) | 2012-11-30 | 2012-11-30 | Reverse pressure plate sealing structure of vertical parting automatic molding machine of clay sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220649214 CN203044813U (en) | 2012-11-30 | 2012-11-30 | Reverse pressure plate sealing structure of vertical parting automatic molding machine of clay sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203044813U true CN203044813U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220649214 Expired - Lifetime CN203044813U (en) | 2012-11-30 | 2012-11-30 | Reverse pressure plate sealing structure of vertical parting automatic molding machine of clay sand |
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| CN (1) | CN203044813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090931A (en) * | 2019-06-17 | 2019-08-06 | 保定锐泓机械制造有限公司 | A kind of two-way mould on end device |
-
2012
- 2012-11-30 CN CN 201220649214 patent/CN203044813U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090931A (en) * | 2019-06-17 | 2019-08-06 | 保定锐泓机械制造有限公司 | A kind of two-way mould on end device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |
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| CX01 | Expiry of patent term |